Use Kingstar as any other high-quality embroidery thread. No need for a special needle or slower running speeds. Threads in the Kingstar Metallic Embroidery Thread Pack are colorfast and will not fade on your garment. Kingstar Metallics have a polyester core and are wrapped in rice paper with a metallic finish. The high quality thread doesn't kink as it unwinds from the spool and runs smoothly through the thread pre-tensioners, resulting in fewer thread breaks and higher quality embroidery.